03/08/2017
Always wear your PPE, but don't confuse that with zero bodily damage. PPE hazard ratings do not guarantee zero bodily damage, they assume there will be some burns 2nd degree burns, though you should survive. Better yet, stay well out of the way when the electrician opens and closes there equipment.
An Arc Flash is an electrical explosion resulting from a low impedance connection to ground or another voltage phase in an electrical system.